It is the third choice.
The first one is a single replacement
The second one it a decomposition
The last one is combustion
Answer: 40 grams
Explanation: (16 O2/18 H2O) x 45 H2O = 40 g of Oxygen
Answer:
Vapor pressure does not changes , Boiling point of liquid increases.
Explanation:
The external pressure creates the water molecules to move rapidly. The boiling point of liquid will increase as a result of external pressure induced on the surface of the liquid. The temperature must be kept constant to bring the liquid to boil.
It turns from electrical energy into light energy.
Answer:
magnets
Explanation:
Pseudoscience is "a collection of beliefs or practices mistakenly regarded as being based on scientific method".. keyword: based; it is not science. It is merely a belief. Magnets are not scientifically confirmed as useful in arthritis treatment. There is only a belief that magnets can cure arthritis. So, the answer is magnets
Hope this helps.
- profparis